They include: Different Soils, Different Plant Compositions (Bacteria Help Legume Roots Mobilize Fertility); Different Soils, Different Plant Compositions (Microbes Give Legumes Their Protein Power); Different Soils, Different Plant Compositions (Fertility Effects Show Early in Plants); Different Soils. . . (Big Yields of Bulk-Low Phosphorus Concentration); Different Soils. . . (Boron Interrelated with Potassium); Different Soils. . . (Boron Helps Maintain Potassium Balance); Different Soils. . . (Soil Exhaustion--Variable Organic and Inorganic Composition of Plants); Different Soils. . . (Sulfur Deficiency in Soils); Different Soils. . . (Chemical Composition of Plants and the "Feeding Power" of Their Roots); Different Soils. . . (Chemical Composition of Plants and the "Feeding Power" of Their Roots) part 2; Different Soils. . . (Vegetable Quality Reveals its Connection with Soil Organic Matter); Different Soils.. . ("Chelation")--Nature's Emphasis on Soil Organic Matter.